5-Bromo-4-chloro-3-indolyl-b-D-glucuronide cyclohexylammonium salt 1G

5-Bromo-4-chloro-3-indolyl-b-D-glucuronide cyclohexylammonium salt is a chromogenic substrate for β-galactosidase, used to determine the presence or absence of a cloned DNA insert in bacteria growing on agar plates.